body{background:var(--bg);color:var(--text);font-family:var(--font);margin:0}main{max-width:1100px;margin:0 auto;padding:0 24px 80px}.cat-header{position:relative;margin-bottom:40px;overflow:hidden;height:220px;background:linear-gradient(135deg,#1a1028,#2d1b4e,#1a1028);display:flex;align-items:center;justify-content:center}.cat-header-glow{position:absolute;width:500px;height:300px;background:radial-gradient(ellipse,rgba(139,92,246,.2) 0%,transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none}.cat-header-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(139,92,246,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(139,92,246,.07) 1px,transparent 1px);background-size:40px 40px;mask-image:radial-gradient(ellipse 60% 60% at 50% 50%,black 10%,transparent 70%)}.cat-header-inner{position:relative;z-index:2;text-align:center;padding:0 24px}.cat-header h1{font-size:clamp(2.2rem,6vw,3.5rem);font-weight:800;letter-spacing:-.04em;line-height:1;margin-bottom:10px;color:#fff;text-shadow:0 0 40px rgba(139,92,246,.35)}.cat-header p{font-size:.88rem;color:#ffffff80;max-width:420px;margin:0 auto}.week-sticky{position:sticky;top:52px;z-index:90;background:#fafafaeb;backdrop-filter:blur(12px);border-bottom:1px solid var(--border);margin:0 -24px 32px;padding:12px 24px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}.week-sticky::-webkit-scrollbar{display:none}.week-sticky-inner{display:flex;gap:8px;max-width:1100px;margin:0 auto}.week-pill{flex:0 0 auto;padding:6px 14px;border-radius:20px;font-size:.78rem;font-weight:600;background:var(--bg);border:1px solid var(--border);color:var(--text-secondary);text-decoration:none;transition:all .15s ease;white-space:nowrap}.week-pill:hover{border-color:var(--tech);color:var(--tech);background:var(--tech-bg);transform:translateY(-1px)}.week-pill.on{background:var(--tech);color:#fff;border-color:var(--tech)}.week-section{margin-bottom:48px;scroll-margin-top:120px}.week-section-header{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--tech-bg)}.week-section-header h3{font-size:1.05rem;font-weight:700;color:var(--tech);letter-spacing:-.01em;display:flex;align-items:center;gap:8px}.week-section-header .wk-label{font-size:.72rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em}.week-section-header .lesson-count{font-size:.72rem;color:var(--text-tertiary);margin-left:8px}.day-list{display:flex;flex-direction:column;gap:6px}.day-row{display:flex;align-items:center;gap:14px;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--text);border:1px solid transparent;transition:all .15s ease}.day-row:hover{background:var(--surface);border-color:var(--tech-light);transform:translate(4px);box-shadow:var(--shadow-sm)}.day-row .d-badge{width:36px;height:36px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;font-size:.7rem;font-weight:700;background:var(--tech-bg);color:var(--tech)}.day-row .d-info{flex:1;min-width:0}.day-row .d-title{font-size:.88rem;font-weight:600;line-height:1.35;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.day-row .d-desc{font-size:.76rem;color:var(--text-secondary);line-height:1.4;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.day-row .d-date{font-size:.7rem;color:var(--text-tertiary);flex-shrink:0}.search-bar{max-width:480px;margin:0 auto 32px;display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;transition:all .2s;box-shadow:var(--shadow-xs)}.search-bar:focus-within{border-color:var(--tech);box-shadow:0 0 0 3px var(--tech-bg)}.search-bar:hover{border-color:var(--border-dark)}.search-bar svg{color:var(--text-tertiary);flex-shrink:0}.search-bar input{border:none;outline:none;flex:1;font-size:.88rem;color:var(--text);background:transparent;font-family:inherit}.search-bar input::placeholder{color:var(--text-tertiary)}@media (max-width: 640px){.cat-header{margin-bottom:28px;height:170px}.week-sticky{margin-bottom:24px;padding:10px 16px}.day-row{padding:10px 8px}.day-row .d-desc{display:none}}